Pump-jack.



P. A. MYERS.

PUMP JACK.

APPLICATION FILED OCT. 21. I9I4.

l, 146,729. y Patented Ju1y13, 1915.

CoLUMmA PLANQGRAPH co.,wAsHlNaToN, u. c.

. ED @RATES PATENT @hlhlfl PHILIP MYERS, OF ASHLAND, OI-II, ASSIGNORr TOF. E. MYERS AND BRGTI-IEB, A

oorenrivnnsnrr consrs'rrne ns1-inem), OHIO. i

To all whom it may concern.' y n Be it known that I, PHILIP A.' MYERS, acitizen of the United States, residing `at Ashland, in the county krofAshland and State of hio, have invented certain ynew and usefulImprovements in Pump-Jacks, of which the following is a specification,reference being had therein to the accompanying drawing. f y

rlhis invention relates to pump jacks, and theobject of theinventionisto provide a jack. which can be yattachedtoy pumps of variouskinds and which may be placed with the base extending aboutthe ybase ofthe "pump and disconnected therefrom so that thethrust will be upon thesupporting platform and not upon the pump. n f j A further object is toprovide such a device which will be very simple in its `construction,positive in its operation, and of a strong, durable character.

In the accompanying drawings Figure l is a perspective View yof myimproved pumping jack, showing the same` attached to a pump; and Fig. 2is a transverse sectional view taken just above'the base, yand omittingthe pump.

In these drawings I have illustrated' one embodiment of my invention,and have shown the same as comprising a base consisting of two separableside members 1 connected one to the other by tie rods Zand havingjournaled therein a shaft 3. yThe forward ends of the side membersproject some distance beyond the shaft and tie rods, and thus enablethem to extend on the opposite sides of the pump base and therebyposition the shaft close to the base. To permit of this arrangement theends of the side members l are preferably flared outwardly,

as shown, and are recessed along their inner edges, as shown at 4, toenable them to overlap the flange of the pump base. Mounted on the shaft3 are crank wheels 5 whichy are here shown in the form of gears whichmesh with and are driven by pinions 6 carried by a shaft 7 on which ismounted a driving pulley 8. Connected with each crank wheel or gear 5 isa pitman or side arm 9. These pitmen when in their operative positioneX- tend upward and are connected one [to the other by a crossliead 10.The crosshead is preferably bolted at its ends to the side arms, and thearms may be provided with a series of holes 11 to enable the crossheadto kSpecification of Letters Patent.

OF ERANCIS E. MYERS AND PHILIP A. MYERS, OF

i ki PUMP-JACK.

Patented July I3, 12915.

Application filed Octoberm, 1914. Serial No. 867,876.

be adjusted relatively thereto. This crosshcad is adapted for connectionwith a pump rod l2 which forms a part of a pump 13. It is desirable thatthe connection between the pump rod and the crosshead should havemovement about a transverse aXis to permit of the operation of thep'itmen, and that it should be movable about a longitudinal axis topermit the cross-head to occupy different positions relatively to thepump rod, which is usually flat. To this end I have made this connectionin the form of a universal joint, the crosshead being provided with asocket lll; having mounted therein a ball l5 in which is formed alongitudinal opening to receive the pump rod. A pin 16 extends throughthe upper portion of the ball and the pump `rod to separably connect thesame.

The operation of the pump jack will be readily understood from theforegoing description, and it will be apparent that I have provided ajack which can be connected with pumps of various kinds because of theconstruction which permits it to be placed in different positions aboutthe base of the pump, thus it is applicable not only to a pump havingitsdischarge spout on the side opposite the handle, but also to a pumphaving its discharge spout at right angles to the handle. Pump jacks ofthis type heretofore employed could not be applied to pumps having thislatter arrangement because of the interference of the jack with parts ofthe pump. By providing a base comprising separable side members it ispossible to adjust these side members to adapt the jack to pumps ofdifferent kinds. Ordinarily, this adjustment will bemade at the factory,and tie rods and shafts of different lengths employed.v In this way thejack can be accommodated to pump bases of different sizes and dierentkinds without the necessity of each size constituting a separatemanufacturing proposition. The base of the jack having been arranged toaccommodate it to thecparticular pump to which it is desired to applyit, the jack may be placed about the pump base in any desired positionrelative to the fiat pump rod, and the connecting device on thecrosshead adjusted to correspond to that position. Further, thisconnecting device is of such a character as to permit of the movement ofthe pitmen after the crosshead has been connected with the pump rod,regardless of the position of the pump rod. Further, it will be apparentthat the device is exceedingly simple in its construction, very strongand durable, and is of such a character that it can be manufactured at arelatively low cost.

Vhile I have shown and described kone embodiment of my invention, I wishit to be understood that I do not desire to be limited to the details ofconstruction shown and described, as obvious modications will occur to aperson skilled in the art.

i-Iaving .thus fully described my invention, what I claim as new anddesire to secure by Letters Patent, is:

l. A pump ack comprising a base open on one side to permit it to beplaced about the base of a pump, a shaft journaled on said base, crankwheels Vmounted on said shaft, pitmen connected tothe respective crankwheels, a crosshead connected to said pitmen and a connecting devicecomprising` a universal joint to connect the crosshead to the pump rodof said pump and to permit said pump rod to move relatively to saidcrosshead about both a longitudinal axis and a transverse axis.

2. A pump jack comprising a base consisting of two side membersyseparably connected to permit them to be spaced derent distances apart,said side members being spaced away from each other at one end of thebase to permit them to extend on opposite sides of the base Vof a pump,crank wheels mounted on said base, pitmen connected with the respectivecrank wheels, a crossheadrconnecting said pitmen, and a connectingdevice comprising a universal joint to connect the crosshead to the pumprod of said pump and to permit said pump rod to move relatively toy saidcrosshead about both a longitudinal axis and a trans verse axis.

3. A pump Jack comprising a base consisting of two side membersseparably connected with the respective crank wheels, a

crosshead connecting said pitmen and a Connecting device to connect thecrosshead to the pump rod of said pump, said connecting devicecomprising a socket formed in said crosshead, a ball mounted` in saidsocket and having a longitudinaly opening to receive said pump rod, andmeans for fastening' said pump rod to said ball.

4. A pump jack comprising a base consisting of separable side members,atie rod to connect said side members, a shaft journaled invsaid base,said tie rod and. said shaft being located at points removed from oneendof said base to permit said side members to extend on opposite sidesof a pump base, crank wheels mounted on said shaft, pitmen connected tosaid crank wheels, a crosshead'connecting said pitmen, and a connectingdevice to connect said crosshead to the pump` rod of saidpump, saiddevice being mounted on said crosshead for movement relative theretoabout both a longitudinal axis anda transverse axis.

In testimony whereof, I affix my signature in presence of two witnesses.

PHILIP A. MYERS.l llf'itnesses:T

II.y A. REASER, i R. M. TUBBs.

Copies of this patent may be obtainedr for ve cents each,`by addressingthe Commissioner of Patents,

Washington, D. C.

